The recent Facebook meme that asks people to list 10 concerts they've been to with one lie may give away important information to a prospective hacker, security experts say.

Many websites use a variation of the questions "what was your first concert" or "what is the best concert you've been to" for security purposes, so unintentionally offering those answers in a Facebook could break down a line of defense.

In an interview with the New York Times, Michael Kaiser, executive director of the National Cyber Security Alliance, said the meme poses a "moderate security risk." His suggestion is for people to use a fake answer when setting up security questions.

Going deeper, Kaiser said posts like the 10 concerts meme can subtly give away personal information, such as age and musical tastes, to marketers who then will target ads.

“People always have to have their eyes wide open when they’re on the internet,” he said. “It’s the way of the world.”